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| author | Jes Sorensen <jsorensen@fb.com> | 2019-08-28 16:36:25 -0400 |
|---|---|---|
| committer | Corey Minyard <cminyard@mvista.com> | 2019-09-12 16:03:18 -0500 |
| commit | c9acc3c4f8e42ae538aea7f418fddc16f257ba75 (patch) | |
| tree | 8cd75733593157def2fe78aeadb37d21c5bb4c22 | |
| parent | 383035211c79d4d98481a09ad429b31c7dbf22bd (diff) | |
| download | linux-c9acc3c4f8e42ae538aea7f418fddc16f257ba75.tar.gz linux-c9acc3c4f8e42ae538aea7f418fddc16f257ba75.tar.bz2 linux-c9acc3c4f8e42ae538aea7f418fddc16f257ba75.zip | |
ipmi_si_intf: Fix race in timer shutdown handling
smi_mod_timer() enables the timer before setting timer_running. This
means the timer can be running when we get to stop_timer_and_thread()
without timer_running having been set, resulting in del_timer_sync()
not being called and the timer being left to cause havoc during
shutdown.
Instead just call del_timer_sync() unconditionally
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Message-Id: <20190828203625.32093-2-Jes.Sorensen@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index d58253432a9a..6b9a0593d2eb 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -1843,8 +1843,7 @@ static inline void stop_timer_and_thread(struct smi_info *smi_info) } smi_info->timer_can_start = false; - if (smi_info->timer_running) - del_timer_sync(&smi_info->si_timer); + del_timer_sync(&smi_info->si_timer); } static struct smi_info *find_dup_si(struct smi_info *info) |